Table 3 Clinical characteristics of 187 patients in the ERT and LRT groups after propensity score matching

Gender

Male

51

95

0.541

44

44

1.000

Female

14

27

12

12

Age, y

≥65

20

30

0.389

19

18

1.000

<65

45

92

37

38

KPS

≥80

62

112

0.548

53

54

1.000

<80

3

10

3

2

Smoking index

≥400

51

95

1.000

45

43

0.818

<400

14

27

11

13

Family history of neoplasm

Yes

8

31

0.039

8

9

1.000

No

57

91

48

47

Weight loss

Yes

6

19

0.265

6

6

1.000

No

59

103

50

50

PCI

Yes

15

10

0.006

7

8

1.000

No

50

112

49

48

Number of metastases ≥2

Yes

11

20

1.000

9

12

0.629

NO

54

102

47

44